Port St. Lucie, Florida Weather:
Thursday, May 21, 2026
Cloudy Weather
Day 88°
Night 72°
Precipitation 22 %
Wind 7 mph
Weather Forecast History
Last Year's Weather on This Day (May 21, 2025)
Cloudy Weather

Day

100°

Night

72°

Wind

8 mph

UV Index

12

Precipitation

40 %